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The suppression of DLD-1 colorectal carcinoma cells treated with EEPP (6.25 μg/mL), pennogenin 3-O-beta-chacotrioside (1.8 μM), or polyphyllin VI (1.4 μM) for 24 h. The concentrations of pennogenin 3-O-beta-chacotrioside and polyphyllin VI were calculated according to EEPP. Data are shown as means ± SD (n = 3). The significant differences are denoted by different letters (p < 0.05).
